Week two: fourth case of fungal meningitis discovered in Minn.

A 70-year-old Minnesota woman contracted fungal meningitis last week, the fourth reported case in Minnesota of an outbreak that has caused 15 deaths nationally, the Star Tribune reported Saturday.

The three previous Minnesota cases involved women in women in their 40's, according to the Star Tribune. Two of the women have been treated and released from the hospital and the third is expected to be released from the hospital soon.